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Scored Cylinder Wall Opinions

Posted by Aethro, Jul 11, 2018

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  1. Aethro

    Aethro Probationary Member

    Joined Jun 21, 2018
    North Adams, Massachusetts
    328367E7-0C48-4DAA-96BB-6C71D6ECC47E.jpeg 9DF762B6-EE3B-4FE9-92B9-4085F90C2509.jpeg E7B81875-CB20-4AA4-B52A-C52A27E88FA9.jpeg 4827AEF7-90A6-45F6-92FD-2BA6F883E59B.jpeg 328367E7-0C48-4DAA-96BB-6C71D6ECC47E.jpeg 9DF762B6-EE3B-4FE9-92B9-4085F90C2509.jpeg I finally have my block all tore down, one piston melted the ring lands and part of the ring fell out, one of the tier pistons started to fail as well and the ring grooved up the cylinder wall. Everything elese looks smooth, however the hone isn’t very pronounced. I currently have .020 over Pistons for the rebuild, does this look like something that can be bored out @ .020 or showed I just exchange them for .040 over?

    213  3

    1992 Mitsubishi Eclipse GST
    fwd · manual · 1G DSM

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    GRAVEDIGGER Proven Member

    Joined Nov 26, 2007
    Uniontown, Ohio
    It's too hard to tell from just a picture unfortunately. I would recommend taking it to a machine shop and let them tell you what can, or can't be done. Hopefully they can just go .020 over and it will be good, but you won't know until you do it.

    1K  18

    1991 Eagle Talon TSi AWD
    12.149 @ 115.940 · 1G DSM
    pauleyman and dsmcrzy like this.

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